CN110463087A

CN110463087A - The cell searching and system information of enhancing obtain

Info

Publication number: CN110463087A
Application number: CN201880020640.5A
Authority: CN
Inventors: S·塔拉里科; 叶悄扬; D·查特吉; 韩承希; 李大远
Original assignee: Intel IP Corp
Current assignee: Apple Inc
Priority date: 2017-03-24
Filing date: 2018-03-20
Publication date: 2019-11-15
Anticipated expiration: 2038-03-20
Also published as: WO2018175433A1; EP3602852A4; US11595925B2; US11088797B2; EP4096123A1; US20200169363A1; EP3602852A1; CN110463087B; US20220006585A1

Abstract

It describes for enhancing cell searching and enhancing the embodiment for the efeMTC synchronization signal that system information obtains.In some embodiments, the sequence that it is x for the length of efeMTC synchronization signal that the device of base station (BS), which is configurable to generate, the length are that the sequence of x is configured for repeating in a frequency domain in 6 Physical Resource Block (PRB).In some embodiments, in order to generate the sequence that length is x, BS can be configured as selection and exclude one group of root index { 1 that root indexes 25,29 and 34,2, ..., 63 } any one of index, with correspond to different physical-layer cell identifiers (PCID).In some embodiments, BS, which can be configured as, encodes to include system information block (SIB) RRC signaling, the system information block includes the configuration information for being used for transmission efeMTC synchronization signal, and transmits the sequence for being x as the length of efeMTC synchronization signal in frequency resource according to SIB.

Description

The cell searching and system information of enhancing obtain

Priority claim

The U.S. Provisional Patent Application Serial No. 62/476,574 and 2017 year submitted this application claims on March 24th, 2017 The priority for the U.S. Provisional Patent Application Serial No. 62/587,657 submitted November 17, each of them are whole by quoting Body is incorporated herein.

Technical field

Embodiment is related to wireless network and wireless communication.Some embodiments are related to including advanced LTE (LTE-A) network 3GPP long term evolution (LTE) network.Some embodiments are related to 5G network.Some embodiments are related to further enhancing for LTE Type machine type communication (efeMTC).Some embodiments are related to obtaining for efeMTC synchronization signal, cell searching and system information Method, computer-readable medium and the device taken.

Background technique

Due to connection solution and sensor, actuator, instrument (water, combustion gas, electronic or parking), automobile and electric appliance Integrated huge interest, and since the use-case of exploitation increases, machine type communication (MTC) or Machine To Machine (M2M) are logical Letter just causes great interest in Mobile Network Operator, equipment supplier and research institution.In order to promote to merge, different marks This theme is studied in 3GPP standardization group always by Zhun Hua group.MTC for cellular communication is based on Rel-12 by 3GPP It is defined with the LTE in Rel-13.

Although low cost has become the main target of the definition of the specification based on Rel-12, in Rel-13 and Rel- In 14, the coverage enhancement of MTC device is always principal focal point together with the operation of reduced power consumption, complexity and narrow bandwidth.Simultaneously with MTC Row, another pushing factor of Internet of Things (IoT) is narrowband Internet of Things (NB-IoT).NB-IoT has similar target, such as Coverage area expansion, the reduction of UE complexity, long battery life and the backward compatibility with LTE network.In addition, NB-IoT purport Disposition flexibility is being provided, is allowing operator to introduce NB-IoT using the sub-fraction of its existing usable spectrum, and with independence, band The operation of one of interior or guard band mode.For example, it is desirable to the further improvement in version 15 to be to reduce system information acquisition time, And improve the performance of cell search.

Detailed description of the invention

Fig. 1 shows the exemplary system architecture of wireless network in accordance with some embodiments.

Fig. 2A shows the protocol function in accordance with some embodiments that can be realized in a wireless communication device；

Fig. 2 B shows the protocol entity in accordance with some embodiments that can be realized in a wireless communication device；

Fig. 3 shows the exemplary components of equipment in accordance with some embodiments；

Fig. 4 shows the example interface of baseband circuit in accordance with some embodiments；

Fig. 5 is to show that instruction can be read from machine readable or computer-readable medium according to some example embodiments The block diagram of component；

Fig. 6 shows the table of physical layer identifications in accordance with some embodiments and associated index；

Fig. 7 shows the exemplary cross-correlation of certain sequences in accordance with some embodiments；

Fig. 8 shows the exemplary cross-correlation of certain sequences in accordance with some embodiments；

Fig. 9 shows the exemplary cross-correlation of certain sequences in accordance with some embodiments；

Figure 10 A shows the exemplary cross-correlation of certain sequences in accordance with some embodiments；

Figure 10 B shows the exemplary cross-correlation of certain sequences in accordance with some embodiments；

Figure 11 shows the block diagram of example machine in accordance with some embodiments.

Specific embodiment

Fig. 1 shows the framework of the system 100 of network in accordance with some embodiments.In some embodiments, system 100 can To be configured for efeMTC operation, for example, efeMTC synchronization signal sends and receives, cell searching and increasing for enhancing Strong system information obtains.

System 100 is shown as including user equipment (UE) 101 and UE 102, such as is configured to efeMTC operation UE.UE 101 and 102 is illustrated as smart phone (for example, the hand-held touch screen that may be connected to one or more cellular networks is mobile Calculate equipment), it is also possible to include any movement or stationary computing devices, such as personal digital assistant (PDA), paging Machine, laptop computer, desktop computer, wireless handset or any calculating equipment including wireless communication interface.

In some embodiments, any one of UE 101 and 102 may include Internet of Things (IoT) UE, the Internet of Things (IoT) UE may include the network access layer applied designed for the low-power IoT using short-term UE connection.IoT UE can benefit With the technology of such as machine to machine (M2M) or machine type communication (MTC) come via public land mobile network (PLMN), base In neighbouring service (ProSe) or device-to-device (D2D) communication, sensor network or IoT network and MTC server or equipment Exchange data.M2M or MTC data exchange can be the data exchange of machine initiation.IoT network describes the IoT UE of interconnection, The IoT UE of the interconnection may include (setting on internet basis with the unique identifiable embedding assembly equipment connected in short term In applying).IoT UE can execute background application (for example, keeping efficient message, state update etc.) to promote the company of IoT network It connects.

UE 101 and 102, which can be configured as, connect (for example, being communicatively coupled) with Radio Access Network (RAN) 110, RAN 110 can be such as evolution Universal Mobile Telecommunications System (UMTS) grounding wireless access network network (E-UTRAN), NextGen RAN (NG RAN) or some other types of RAN.UE 101 and 102 is utilized respectively connection 103 and 104, Mei Gelian It connects including physical communication interface or layer (being discussed in further detail below)；In this example, connection 103 and 104 is illustrated as being used for Realize the air interface being communicatively coupled, and can be consistent with following cellular communication protocol, such as global system for mobile communications (GSM) agreement, CDMA (CDMA) network protocol, push to speak (PTT) agreement, honeycomb PTT (POC) agreement, General Mobile Telecommunication system (UMTS) agreement, 3GPP long term evolution (LTE) agreement, the 5th generation (5G) agreement, new wireless (NR) agreement etc..

In this embodiment, UE 101 and 102 can be further via the direct exchange communication data of ProSe interface 105.It can Alternatively, ProSe interface 105 can be referred to as the sidelinks interface including one or more logic channels, the logic channel packet Include but be not limited to physical side link control channel (PSCCH), physical side link shared channels (PSSCH), physical side link discovery Channel (PSDCH) and physical side link broadcast channel (PSBCH).

UE 102 is shown as being configured as accessing access point (AP) 106 via connection 107.Connection 107 may include this Ground is wirelessly connected, and such as with the consistent connection of any 802.11 agreement of IEEE, wherein AP 106 will include Wireless Fidelity Router.In this example, AP 106 be shown connect to internet without connected to wireless system core network (below into One step detailed description).

RAN 110 may include one or more access nodes, which realizes connection 103 and 104, for example, with It is operated in efeMTC.These access nodes (AN) are properly termed as base station (BS), NodeB, evolved NodeB (eNB), the next generation NodeB (gNB), RAN node etc., and may include earth station's (for example, terrestrial access points) or in geographic area (for example, small Area) in provide covering satellite station.RAN 110 may include for providing one or more RAN nodes of macrocell, such as it is macro RAN node 111, and one or more RAN nodes for providing Femto cell or picocell are (for example, and macrocell Compare, cell has smaller overlay area, smaller user capacity or higher bandwidth), for example, low-power (LP) RAN is saved Point 112.

Any one of RAN node 111 and 112 can terminate air interface protocol, and can be for UE 101 With 102 the first communication center.In some embodiments, any one of RAN node 111 and 112 can satisfy for RAN 110 various logic function, including but not limited to radio network controller (RNC) function, such as radio bearer management, uplink Road and the management of downlink dynamic radio resource and data packet scheduling and mobile management.

According to some embodiments, UE 101 and 102 be can be configured as using orthogonal frequency division multiplexing (OFDM) signal of communication It communicates with one another or is led to by multicarrier communication channel with any RAN node 111 and 112 according to the following various communication technologys Letter, such as, but not limited to orthogonal frequency division multiple access (OFDMA) communication technology (for example, being used for downlink communication) or single carrier frequency division Multiple access (SC-FDMA) communication technology (for example, for uplink and ProSe or sidelinks communication), but the range of embodiment Aspect without being limited thereto.Ofdm signal may include multiple orthogonal sub-carriers.

In some embodiments, down-chain resource grid can be used for from any RAN node 111 and 112 to UE 101 With 102 downlink transmission, and uplink transmission can use similar technology.Grid can be time frequency grid, referred to as Resource grid or running time-frequency resource grid, the grid are the physical resources in the downlink in each time slot.This time-frequency plane Expression is the common practice for ofdm system, this makes it be intuitive for radio resource allocation.The each column of resource grid An OFDM symbol and an OFDM subcarrier are corresponded respectively to every row.The duration of resource grid corresponds to nothing in time domain A time slot in line frame.Minimum time frequency unit in resource grid is expressed as resource unit.Each resource grid includes multiple Resource block, the resource block describe the mapping of certain physical channels to resource unit.Each resource block includes the collection of resource unit It closes；In a frequency domain, this can indicate the least resource amount that can currently distribute.In the presence of using this resource block transmit it is several not Same physical down link channel.

User data and higher level signaling can be carried to 101 He of UE by physical down link sharing channel (PDSCH) 102.Physical downlink control channel (PDCCH) can be carried about transformat related with PDSCH channel and resource point The information etc. matched.It can also notify transformat related with uplink shared channel, resource allocation to UE 101 and 102 With H-ARQ (hybrid automatic repeat-request) information.In general, can be based on the letter fed back from any one of UE 101 and 102 Road quality information executes the downlink scheduling (UE into cell at any one of RAN node 111 and 112 node 102 distribution controls and shared channel resources block).It can be for each of (for example, distributing to) UE's 101 and 102 Resource allocation information is sent on PDCCH.

Control channel unit (CCE) can be used to transmit control information in PDCCH.It, can before being mapped to resource unit PDCCH complex-valued symbol is organized into four-tuple first, the four-tuple then can be used sub-block interleaver it is replaced with into Row rate-matched.One or more CCE in these CCE can be used to send each PDCCH, wherein each CCE can be right It should be in nine groups of four physical resource units of referred to as resource unit group (REG).Four quadrature phase shift keying (QPSK) can be accorded with Number it is mapped to each REG.One or more CCE can be used to send PDCCH, this depends on down link control information (DO) Size and channel condition.In the presence of four kinds or more the different PDCCH of the CCE with different number defined in LTE Format (for example, aggregation level, L=1,2,4 or 8).

The concept of the resource allocation for control channel information can be used in some embodiments, which is above-mentioned concept Extension.For example, some embodiments can use enhanced physical downlink control channel (EPDCCH), which is used PDSCH resource is transmitted to carry out control information.The control channel unit (ECCE) of one or more enhancings can be used to send EPDCCH.Similar to above, each ECCE can correspond to the nine groups of four physics money for referred to as enhancing resource unit group (EREG) Source unit.In some cases, ECCE can have the EREG of other quantity.

RAN 110 is shown as being communicably coupled to core network (CN) 120 via SI interface 113.In embodiment, CN 120 can be evolution block core (EPC) network, NextGen block core (NPC) network or some other types of CN.In In the embodiment, SI interface 113 is divided into two parts: S1-U interface 114, carries RAN node 111 and 112 and gateway (S-GW) data on flows between 122；And S1 mobility management entity (MME) interface 115, it is RAN node 111 and 112 With the signaling interface between MME 121.

In this embodiment, CN 120 includes MME 121, S-GW 122, packet data network (PDN) gateway (P-GW) 123 and home subscriber servers (HSS) 124.MME 121 can be functionally similar to traditional services general packet radio service (GPRS) the control plane of supporting node (SGSN).MME 121 can manage such as gateway selection and tracking zone list management Access in mobility in terms of.HSS 124 may include the database for the network user, including for supporting network entity Handle the subscription related information of communication session.CN120 may include one or more HSS 124, this depends on mobile subscriber Quantity, the capacity of equipment, tissue of network etc..For example, HSS 124 can provide to routing/roaming, certification, authorization, name/ Address the support of solution, position correlation etc..

S-GW 122 can terminate S1 interface 113 towards RAN 110, and route number between RAN 110 and CN 120 According to grouping.In addition, S-GW 122 can be the local mobility anchor for the switching of RAN intermediate node, and use can also be provided The ambulant anchor between 3GPP.Other responsibilities may include lawful intercept, charging and some policy implementations.

P-GW 123 can terminate the SGi interface towards PDN.P-GW 123 can agreement (IP) interface via internet 125 (are alternatively referred to as application function in the external network of EPC network 123 and the network such as including application server 130 (AF)) data grouping is routed between.In general, application server 130 can be to provide IP bearing resource and core network (example Such as, the domain UMTS packet service (PS), LTE PS data service etc.) element of application that is used together.In this embodiment, P-GW 123 are shown as being communicably coupled to application server 130 via IP communication interface 125.Application server 130 can also be matched It is set to and supports one or more communication services of UE 101 and 102 (for example, internet voice protocol (VoIP) meeting via CN120 Words, PTT session, group communication session, social networking service etc.).

P-GW 123 may furthermore is that the node for strategy implement and accounting data collection.Function is implemented in strategy and charging Energy (PCRF) 126 is the strategy and charging control unit of CN 120.In non-roaming scene, in Home Public Land Mobile Network network (HPLMN) there may be single PCRFs associated with connection access network (IP-CAN) session of the Internet Protocol of UE in.In In the roaming scence broken through with local flow, it is understood that there may be in two PCRF:HPLMN associated with the IP-CAN session of UE Ownership PCRF (H-PCRF) and access public land mobile network (VPLMN) in access PCRF (V-PCRF).PCRF 126 can be communicably coupled to application server 130 via P-GW 123.Application server 130 can signal PCRF 126 to indicate new service flow and select service quality appropriate (QoS) and billing parameter.PCRF 126 can propose the rule Supply has the function of that the strategy of the identifier (QCI) of flow flow template (TFT) appropriate and QoS classification and charging implement (PCEF) (not shown) starts the QoS such as specified by application server 130 and charging.

Fig. 2A show can in wireless telecom equipment in accordance with some embodiments (such as be configured to efeMTC behaviour In the UE or BS of work) realize protocol function.

In some embodiments, other than unshowned other higher functions, protocol layer may include physical layer (PHY) 210, media access control layer (MAC) 220, wireless chain control layer (RLC) 230, packet data convergence protocol layer (PDCP) 240, service data adapting protocol (SDAP) layer 247, radio resource control layer (RRC) 255 and Non-Access Stratum (NAS) layer One or more of 257.

According to some embodiments, protocol layer may include can provide communication between two or more protocol layers one A or multiple Service Access Points.

According to some embodiments, PHY 210 can send and receive can be by one or more of the other communication equipment (example Such as, UE 101, UE 102, equipment 300) physical layer signal 205 that receives or sends respectively.According to some aspects, physical layer letter Numbers 205 may include one or more physical channels.

According to some embodiments, the example of PHY 210 can be via one or more physical layer services access point (PHY- SAP it) 215 handles the request of the examples from MAC 220 and provides instruction to the example of MAC220.According to some embodiments, warp It may include one or more transmission channels by the request transmitted of PHY-SAP 215 and instruction.

According to some embodiments, the example of MAC 210 can be via one or more Medium access control Service access points (MAC-SAP) it 225 handles the request of the examples from RLC 230 and provides instruction to the example of RLC 230.According to some implementations Example may include one or more logic channels via the request transmitted of MAC-SAP 225 and instruction.

According to some embodiments, the example of RLC 230 can be via one or more wireless spread-spectrum technology Service Access Points (RLC-SAP) it 235 handles the request of the examples from PDCP 240 and provides instruction to the example of PDCP 240.According to some realities Example is applied, may include one or more RLC channels via the request transmitted of RLC-SAP 235 and instruction.

According to some embodiments, the example of PDCP 240 can connect via one or more packets data convergence protocol service Access point (PDCP-SAP) 245 handles one or more examples of one or more examples and SDAP 247 from RRC 255 It requests and provides instruction to one or more examples of RRC 255 and one or more examples of SDAP 247.According to some realities Example is applied, may include one or more radio bearers via the request transmitted of PDCP-SAP 245 and instruction.

According to some embodiments, the example of SDAP 247 can be via one or more service data self-adapted protocol services Access point (SDAP-SAP) 249 handles the request from one or more higher layer protocol entities and to one or more higher Protocol entity provides instruction.It may include one via the request transmitted of SDAP-SAP 249 and instruction according to some embodiments Or multiple service quality (QoS) streams.

According to some embodiments, RRC entity 255 can be configured via one or more management service access points (M-SAP) The embodiment of one or more protocol layers may include PHY 210, MAC 220, RLC 230, PDCP 240 and SDAP 247 In one or more examples.According to some embodiments, the example of RRC can be via one or more RRC Service Access Points (RRC-SAP) it handles the request from one or more NAS entities and provides instruction to one or more NAS entities.

Fig. 2 B shows the protocol entity in accordance with some embodiments that can be realized in a wireless communication device.For example, root According to some embodiments, it includes UE that can be realized in a wireless communication device, which is configured for the protocol entity of efeMTC operation, (it can be referred to as evolution node B (eNB) or new radio node B for 260 (for example, UE 101, UE 102, equipment 300), base station (gNB) 280) and network function (its can be referred to as mobility management entity (MME) or access and mobile management function to ps domain One or more of (AMF) 294).

According to some embodiments, 5GNB 280 may be implemented as such as macrocell, Femto cell or other properly set One or more of standby dedicated physical equipment, or in alternative aspect, can be implemented as running on a server computer One or more software entities, referred to as a part of the virtual network of cloud Radio Access Network (CRAN).

It, can be in UE 260 (for example, UE 101, UE 102, equipment 300), gNB 280 and AMF according to some embodiments The one or more protocol entities realized in one or more of 294 can be described as realizing the whole or one of protocol stack Part, middle layer are considered with the sequence of PHY, MAC, RLC, PDCP, RRC and NAS from most sorting as low as highest.According to some realities Example is applied, the one or more protocol entities that can be realized in one or more of UE 260, gNB 280 and AMF 294 can To use the service for the corresponding lower-level protocols entity for executing this communication come corresponding to that can realize in another equipment Peer protocol entity is communicated.

According to some embodiments, UE PHY 272 and peer-entities gNB PHY 290 can be used and send out via wireless medium It send and is communicated with received signal.According to some embodiments, UE MAC 270 and peer-entities gNB MAC 288 be can be used It is communicated respectively by the service that UE PHY 272 and gNB PHY 290 are provided.According to some embodiments, UE RLC 268 and right Equal entities gNB RLC 286 can be used to be communicated by the service that UE MAC 270 and gNB MAC288 is provided respectively.According to Some embodiments, UE PDCP 266 and peer-entities gNB PDCP 284 can be used respectively by UE RLC 268 and 5GNB The service that RLC 286 is provided is communicated.According to some embodiments, difference is can be used in UE RRC 264 and gNB RRC 282 It is communicated by the service that UE PDCP 266 and gNB PDCP 284 are provided.According to some embodiments, UE NAS 262 and AMF NAS 292 can be used to be communicated by the service that UE RRC 264 and gNB RRC 282 are provided respectively.

Fig. 3 shows the exemplary components of equipment 300 in accordance with some embodiments.For example, equipment 300 can be and be configured to The equipment (for example, UE 101, UE 102, UE 260, RAN node 111/112) of efeMTC operation.

In some embodiments, equipment 300 may include application circuit 302, the base being at least coupled as shown in the figure Band circuit 304, radio frequency (RF) circuit 306, front-end module (FEM) circuit 308, one or more antennas 310 and power management electricity Road (PMC) 312.The component of shown equipment 300 may include in UE (for example, UE 101, UE 102, UE 260) or RAN node In (for example, macro RAN node 111, LP RAN node 112, gNB 280).In some embodiments, equipment 300 may include compared with Few element (for example, RAN node can not utilize application circuit 302, but may include processor/controller with handle from The received IP data of EPC).In some embodiments, equipment 300 may include add ons, such as memory/storage dress It sets, display, camera, sensor or input/output (I/O) interface.In other embodiments, component described below can wrap It includes in more than one equipment (for example, the circuit can be individually comprised for the realization side Cloud-RAN (C-RAN) In the more than one equipment of formula).

Application circuit 302 may include one or more application processor.For example, application circuit 302 may include circuit, Such as, but not limited to one or more single or multiple core processors.Processor may include general processor and application specific processor Any combination of (for example, graphics processor, application processor etc.).Processor can be coupled with storage/memory or May include storage/memory, and can be configured as execute the instruction that is stored in storage/memory so that Various applications or operating system can be run in equipment 300.In some embodiments, the processor of application circuit 302 can be with It handles from the received IP data grouping of EPC.

Baseband circuit 304 may include circuit, such as, but not limited to one or more single or multiple core processors.Base band electricity Road 304 may include one or more baseband processor or control logic, be connect with processing from the reception signal path of RF circuit 306 The baseband signal of receipts, and generate the baseband signal of the transmission signal path for RF circuit 306.Baseband processing circuitry 304 can be with With 302 interface of application circuit, for generating and handling baseband signal, and it is used to control the operation of RF circuit 306.For example, one In a little embodiments, baseband circuit 304 may include the third generation (3G) baseband processor 304A, forth generation (4G) baseband processor In 304B, the 5th generation (5G) baseband processor 304C or other existing generation, the following exploitation or the generation developed in the future, are (for example, the second generation (2G), the 6th generation (6G) etc.) other baseband processor 304D.Baseband circuit 304 is (for example, in baseband processor 304A-D It is one or more) it can handle various Radio Control Function, which can be via RF circuit 306 and one or more A wireless communication.

In other embodiments, some or all functions of baseband processor 304A-D may include being stored in memory In module in 304G, and executed via central processing unit (CPU) 304E.Radio Control Function can include but is not limited to Signal modulation/demodulation, coding/decoding, radio frequency displacement etc..In some embodiments, the modulation/demodulation circuit of baseband circuit 304 It may include Fast Fourier Transform (FFT), precoding or constellation mapping/demapping function.In some embodiments, base band electricity The coding/decoding circuit on road 304 may include convolution, tail biting convolution, turbo, Viterbi or low-density checksum (LDPC) Coder/decoder functionalities.The embodiment of modulating/demodulating and coder/decoder functionalities is not limited to these examples, and can be with Including other suitable functions in other embodiments.

In some embodiments, baseband circuit 304 may include one or more audio digital signal processors (DSP) 304F.Audio DSP 304F may include the element for compression/de-compression and echo cancellor, and in other embodiments may be used To include other suitable processing elements.In some embodiments, the component of baseband circuit can be combined properly in single core In piece, one single chip group, or it is arranged on same circuit board.In some embodiments, baseband circuit 304 and application circuit 302 some or all of composition components can be realized such as together on system on chip (SOC).

In some embodiments, baseband circuit 304 can provide the communication compatible with one or more wireless technologys.Example Such as, in some embodiments, baseband circuit 304 can support with the universal terrestrial access network of evolution (EUTRA) or its The communication of its wireless MAN (WMAN), WLAN (WLAN), wireless personal area network (WPAN).Wherein 304 quilt of baseband circuit It is configured to that the embodiment of the wireless communication of more than one wireless protocols is supported to be referred to alternatively as multi-mode baseband circuit.

The communication realized with wireless network can be used through the modulated electromagnetic radiation of non-solid medium in RF circuit 306. In various embodiments, RF circuit 306 may include switch, filter, amplifier etc., to promote the communication with wireless network. RF circuit 306 may include receiving signal path, which may include connecing for down coversion from FEM circuit 308 The RF signal of receipts simultaneously provides the circuit of baseband signal to baseband circuit 304.RF circuit 306 can also include sending signal path, The transmission signal path may include the baseband signal provided for up-conversion by baseband circuit 304 and provide RF output signal The circuit transmitted to FEM circuit 308.

In some embodiments, the reception signal path of RF circuit 306 may include mixer 306A, amplifier circuit 306B and filter circuit 306C.In some embodiments, the transmission signal path of RF circuit 306 may include filter circuit 306C and mixer 306A.RF circuit 306 can also include condensating synthesizering circuit 306D, for synthesizing by reception signal path The frequency used with the mixer 306A for sending signal path.In some embodiments, the frequency mixer of signal path is received Circuit 306A can be configured as to be connect come down coversion from FEM circuit 308 based on the frequency synthesis provided by condensating synthesizering circuit 306D The RF signal of receipts.Amplifier circuit 306B can be configured as amplification down-conversion signal, and filter circuit 306C can be Low-pass filter (LPF) or bandpass filter (BPF), the low-pass filter (LPF) or bandpass filter (BPF) be configured as from Unwanted signal is removed in down-conversion signal to generate output baseband signal.Output baseband signal can be supplied to base band electricity Road 304 is to be further processed.In some embodiments, output baseband signal can be zero frequency baseband signal, but this is not It is required.In some embodiments, the mixer 306A for receiving signal path may include passive frequency mixer, but real Apply the range aspect without being limited thereto of example.

In some embodiments, the mixer 306A for sending signal path can be configured as based on by synthesizer electricity The frequency synthesis that road 306D is provided carrys out up-conversion input baseband signal, to generate the RF output signal for being used for FEM circuit 308.Base Band signal can be provided by baseband circuit 304, and can be filtered by filter circuit 306C.

In some embodiments, it receives the mixer 306A of signal path and sends the mixer of signal path 306A may include two or more frequency mixers, and can be arranged to quadrature frequency conversion and up-conversion respectively.One In a little embodiments, the mixer 306A for receiving signal path and the mixer 306A for sending signal path may include Two or more frequency mixers, and mirror image can be arranged to and inhibit (for example, Hartley mirror image inhibits).In some realities It applies in example, the mixer 306A for receiving signal path and the mixer 306A for sending signal path can be arranged use In Direct-conversion and Direct conversion respectively.In some embodiments, the mixer 306A and hair of signal path are received Send the mixer 306A of signal path that can be configured for superheterodyne operation.

In some embodiments, output baseband signal and input baseband signal can be analog baseband signal, but implement The range aspect without being limited thereto of example.In some alternative embodiments, output baseband signal and input baseband signal can be number Baseband signal.In these alternate embodiments, RF circuit 306 may include analog-digital converter (ADC) and digital analog converter (DAC) Circuit, and baseband circuit 304 may include digital baseband interface to communicate with RF circuit 306.

In some dual-mode embodiments, the signal that individual wireless IC circuit is used to handle each frequency spectrum can be provided, But the range of embodiment aspect without being limited thereto.

In some embodiments, condensating synthesizering circuit 306D can be fractional N synthesizer or score N/N+1 synthesizer, still The range of embodiment aspect without being limited thereto, because other types of frequency synthesizer may be suitable.For example, condensating synthesizering circuit 306D can be delta-sigma synthesizer, frequency multiplier or the synthesizer including having the phaselocked loop of frequency divider.

Condensating synthesizering circuit 306D can be configured as based on frequency input and frequency divider control input and synthesize output frequency So that the mixer 306A of RF circuit 306 is used.In some embodiments, condensating synthesizering circuit 306D can be score N/N+ 1 synthesizer.

In some embodiments, frequency input can be provided by voltage controlled oscillator (VCO), but this is not required.Frequency dividing Device control input can depend on required output frequency by baseband circuit 304 or application processor 302 and provide.In some implementations In example, frequency divider control input (for example, N) can be determined from look-up table based on the channel indicated by application processor 302.

The condensating synthesizering circuit 306D of RF circuit 306 may include frequency divider, delay lock loop (DLL), multiplexer and Phase accumulator.In some embodiments, frequency divider can be dual modulus divider (DMD), and phase accumulator can be Digital phase accumulator (DP A).In some embodiments, DMD can be configured as by input signal divided by N or N+1 (for example, Based on carry) to provide division ratio.In some example embodiments, DLL may include one group and cascade tunable prolong Slow element, phase detectors, charge pump and D flip-flop.In these embodiments, delay element can be configured as VCO Periodic decomposition is Nd equal phase groupings, and wherein Nd is the quantity of the delay element in delay line.In this way, DLL It is a VCO period that negative-feedback, which is provided, to assist in ensuring that the total delay by delay line.

In some embodiments, condensating synthesizering circuit 306D, which can be configured as, generates carrier frequency as output frequency, and In other embodiments, output frequency can be carrier frequency multiple (for example, twice of carrier frequency, carrier frequency four Times) and be used in combination with quadrature generator and divider circuit, relative to each other with the carrier frequency of multiple and different phases Generate multiple signals.In some embodiments, output frequency can be LO frequency (f_Lo).In some embodiments, RF circuit 306 It may include IQ/ polarity switch.

FEM circuit 308 may include receiving signal path, which may include following circuit, the circuit It is configured as operating to from the received RF signal of one or more antennas 310, amplifies received signal, and by received letter Number amplified version be supplied to RF circuit 306 to be further processed.FEM circuit 308 can also include sending signal path, the hair Sending signal path may include following circuit, which is configured as amplifying the signal being used for transmission provided by RF circuit 306 By one or more antenna transmissions in one or more antennas 310.In various embodiments, by sending or receiving signal The amplification in path can be completed only in RF circuit 306, only complete in FEM 308, or in RF circuit 306 and FEM308 bis- It is completed in person.

In some embodiments, FEM circuit 308 may include TX/RX switch, in sending mode and reception pattern operation Between switch.FEM circuit may include receiving signal path and transmission signal path.The reception signal path of FEM circuit can be with Including LNA, to amplify received RF signal, and provide using the reception RF signal of amplification as output (such as it is supplied to RF circuit 306).The transmission signal path of FEM circuit 308 may include: power amplifier (PA), amplification input rf signal (for example, by RF circuit 306 provides)；And one or more filters, generate RF signal, for subsequent transmission (for example, by one or One or more antennas in mutiple antennas 310).

In some embodiments, PMC 312 can manage the power for being supplied to baseband circuit 304.Specifically, 312 PMC It can control power supply selection, voltage scaling, battery charging or DC-DC conversion.When equipment 300 can be battery powered, for example, It usually may include PMC 312 when equipment is included in UE.PMC 312 can provide desired realization size and dissipate Power conversion efficiency is improved while thermal characteristics.

Although Fig. 3 shows the PMC 312 only coupled with baseband circuit 304.However, in other embodiments, PMC 312 Can additionally or alternatively be coupled with other components, and other components are executed with similar power management operations, such as but It is not limited to application circuit 302, RF circuit 306 or FEM 308.

In some embodiments, PMC 312 can control or save machine as the various power of equipment 300 in other ways A part of system.For example, if equipment 300 is in RRC_ connection status, wherein it is still attached to RAN node, because of its phase The short time is hoped to receive flow, then it can enter the state for being known as discontinuous reception pattern (DRX) after the inactive period. During the state, equipment 300 can power in of short duration time interval, and to save power.

If equipment 300 may switch to RRC_ idle state without data traffic activity within the extended period, The wherein operation that it and network disconnect and do not execute channel-quality feedback, switching etc..Equipment 300 enters very low Power rating and it execute paging, wherein it is periodically waken up again to listen to network and then power off again.Equipment 300 can not receive data in this state, and in order to receive data, it must convert back RRC_ connection status.

Additional power saving mode can permit the equipment period not available for network be longer than paging interval (range from Several seconds to a few houres).During this time period, equipment can not access network completely and may be fully powered-off.It sends out during this time period Any data sent can all generate very big delay, and assume that delay is acceptable.

The processor of application circuit 302 and the processor of baseband circuit 304 can be used for executing protocol stack (for example, about figure 2A and 2B description protocol stack) one or more examples unit.For example, processor (the independent or group of baseband circuit 304 Close) it can be used for executing the 3rd layer, the 2nd layer or the 1st layer function, and the processor of application circuit 304 can use and connect from these layers The data (for example, packet data) of receipts, and the 4th layer function is further executed (for example, transport communication protocol (TCP) and number of users According to datagram protocol (UDP) layer).As being previously mentioned herein, the 3rd layer may include rrc layer (for example, 255,264,282).Such as this paper institute It mentions, the 2nd layer may include MAC layer (for example, 220,270,288), rlc layer (for example, 230,268,286) and PDCP layers (for example, 240,266,284).As mentioned in this article, the 1st layer may include UE/RAN node PHY layer (for example, 210, 272,290).

Fig. 4 shows the example interface of baseband circuit in accordance with some embodiments.As described above, the baseband circuit 304 of Fig. 3 The memory 304G that may include processor 304A-304E and utilized by the processor.Each of processor 304A-304E Processor can respectively include memory interface 404A-404E, to connect to memory 304G transmission data, or from memory 304G Receive data.

Baseband circuit 304 can further comprise one or more interfaces, all to be communicably coupled to other circuit/equipment If memory interface 412 is (for example, for sending data to the memory outside baseband circuit 304 or outside baseband circuit 304 Memory receive data interface), application circuit interface 414 (for example, for the application circuit 302 of Fig. 3 send data or From the application circuit 302 of Fig. 3 receive data interface), RF circuit interface 416 (for example, for the RF circuit 306 of Fig. 3 send Data or the interface that data are received from the RF circuit 306 of Fig. 3), radio hardware connecting interface 418 is (for example, for near-field communication (NFC) component sends data or receives the interface of data from near-field communication (NFC) component),Component is (for example, low-power consumption)、Component and/or other communication components) and power-management interface 420 (for example, for PMC 312 It sends power supply or controls signal or receive power supply from PMC 312 or control the interface of signal).

Fig. 5 be show according to some example embodiments can from machine readable or computer-readable medium (for example, it is non-temporarily State machine readable storage medium) it reads instruction and executes any one or more of method being discussed herein (for example, one or more EfeMTC operation) component block diagram.Specifically, Fig. 5 show including one or more processors (or processor core) 510, The graphical representation of the hardware resource 500 of one or more memory/storages 520 and one or more communication resources 530, it Each of can via bus 540 be communicatively coupled.It, can for the embodiment using node virtual (for example, NFV) With executive supervisor 502 to provide the performing environment for one or more network piece/sub-pieces to utilize hardware resource 500.

Processor 510 is (for example, central processing unit (CPU), reduced instruction set computing (RISC) processor, complicated order Collection calculates (CISC) processor, graphics processing unit (GPU), digital signal processor (DSP) (such as baseband processor), dedicated Integrated circuit (ASIC), RF IC (RFIC), another processor or its any appropriate combination) it may include such as processor 512 and processor 514.

Memory/storage 520 may include main memory, magnetic disk storage or its any suitable combination.Storage Device/storage equipment 520 can include but is not limited to any kind of volatibility or nonvolatile memory, and such as dynamic random is deposited Access to memory (DRAM), static random access memory (SRAM), Erasable Programmable Read Only Memory EPROM (EPROM), electrically erasable Except programmable read only memory (EEPROM), flash memory, solid-state storage device etc..

The communication resource 530 may include interconnection or network interface components or other suitable equipment, with via network 508 with One or more peripheral equipments 504 or one or more databases 506 communicate.For example, the communication resource 530 may include cable modem Believe component (for example, for via universal serial bus (USB) couple), cellular communication component, NFC component,Component (for example, low-power consumption)、Component and other communication components.

Instruction 550 may include software, program, application, applet, app or other executable codes, for make to Few any processor 510 executes any one or more of method discussed in this article.Instruction 550 can be completely or partially resident In processor 510 (for example, in cache memory of processor), memory/storage 520 or its any suitable group In at least one of conjunction.In addition, any part of instruction 550 can be from any combination of peripheral equipment 504 or database 506 It is transmitted to hardware resource 500.Therefore, the memory of processor 510, memory/storage 520, peripheral equipment 504 and data Library 506 is computer-readable and machine readable media example.

It in some embodiments, may include for efeMTC to the enhancing of cell search (for example, for efeMTC) Synchronization signal introduces new sequence.In some embodiments, new synchronization signal (for example, efeMTC synchronization signal) can be main same Walk signal (PSS) (for example, efeMTC PSS) and/or secondary synchronization signal (SSS) (for example, efeMTC SSS).These new sequences Can be obtained from Zadoff-Chu sequence, and these sequences can be it is predefined.In some embodiments, such sequence can To be constant amplitude zero auto-correlation (CAZAC) sequence, maximal-length sequence (m-sequence) and/or Gold sequence.In some implementations In example, such sequence can be obtained from traditional (for example, LTE traditional PS S and/or SSS) sequence, and can be based on and traditional sequence The root of column indexes different root indexes (for example, different Zadoff-Chu root sequence index).In another embodiment, narrowband master Synchronization signal (NPSS) and/or narrowband primary synchronization signal (NSSS) sequence can be used for generating efeMTC synchronization signal.Show at one In example, it can be used with the same physical cell identifier (PCID) for generating PSS sequence and/or SSS sequence (for example, object Manage layer cell identifiers N_ID ⁽²⁾) Lai Shengcheng NPSS sequence and/or NSSS sequence, and can be used with for generate PSS sequence and/ Or SSS sequence or NPSS sequence and/or the identical PCID of NSSS are (for example, physical-layer cell identifier N_ID ⁽²⁾) generate new synchronization Signal (for example, efeMTC synchronization signal).In some embodiments, equipment processing circuit (for example, RAN node 111 and 112, BS, eNB, gNB) it can be configured as the signaling in the subframe being used for transmission is encoded, which includes for synchronous letter Number such new sequence.

It in some embodiments, may include that special measurement subframe is introduced into radio frames lattice to the enhancing of cell search Formula, for example, may include the special measurement subframe of multiple copies of LTE PSS and/or SSS.In other embodiments, special survey Quantum frame may include NPSS and/or NSSS and/or other sequences, and such as new synchronization signal is (for example, the synchronous letter of efeMTC Number).In some embodiments, special measurement subframe may include the combination of any such sequence in single subframe.Any institute The positioning for stating sequence can follow AD HOC.For example, in certain embodiments, for usually carrying cell special reference (CRS) orthogonal frequency division multiplexing (OFDM) symbol, resource unit (RE) can keep constant to keep backward with LTE conventional arrangement Compatibility.Mobility and delay sensitivity, the periodicity of such special subframe depending on UE (for example, CE UE) can change And it can be configured.

It in some embodiments, may include being introduced in subframe to the enhancing of time domain operation (for example, for efeMTC) Diacritic, for example, for efeMTC synchronization signal diacritic (e.g., including efeMTC PSS/SSS, NPSS/NSSS Symbol).For frequency division duplex (FDD), traditional PS S can be sent on the symbol #6 with normal cyclic prefix (CP).Therefore, In some embodiments, it can be sent on the symbol except symbol #5 and symbol #6 in subframe (for example, symbol #3) additional PSS symbol (for example, efeMTC PSS).For FDD, tradition SSS can be sent on the symbol #5 with normal CP, therefore In some embodiments, can be sent on the symbol (for example, symbol #2) in addition to #5 and #6 additional SSS symbol (for example, efeMTC SSS)。

For time division duplex (TDD), traditional PS S can be sent on the symbol #9 with normal CP.Therefore, in some realities It applies in example, can be sent on the symbol except symbol #6 and symbol #9 in subframe (for example, symbol #5, symbol #10) additional PSS symbol (for example, efeMTC PSS).For TDD, tradition SSS can be sent on the symbol #6 with normal CP, therefore It, can be in the symbol in addition to #6 and #9 (for example, symbol #5, symbol #10, or not for adding in some embodiments The symbol of PSS/efeMTC PSS) on send additional SSS symbol (for example, efeMTC SSS).

In another embodiment, LTE traditional PS S and/or SSS can be used for the tradition positioning of both FDD and TDD, to be used for Back compatible, and new PSS/SSS (for example, efeMTC PSS/SSS) may include following sequence, the sequence for example with conventional sequence Difference, to avoid obscuring.It in some embodiments, can be by using the continuous symbol for example obtained from coherent combination, to increase Strong efeMTC PSS/SSS detection.In certain embodiments, new PSS/SSS (for example, efeMTC PSS/SSS) can be directed to FDD is carried in the subframe except subframe #0 and #5, and is carried in subframe #0 and #5 and/or #1 and #6 for TDD.

In some embodiments, additional sub-frames can carry NPSS and/or NSSS (for example, NPSS/NSSS).Repeating can be with Occur in the time domain in two or more continuous subframes, or can be interlacing scan.For example, not including LTE tradition The subframe (for example, subframe #0, #5 and #9 and subframe #0, #1, #5 and #6TDD in FDD) of PSS/SSS or PBCH may include NPSS and/or NSSS.For example, if FDD can be directed in subframe #1-#4 and #6-#8 using NPSS and/or NSSS Them are sent in one or more, and sends them in subframe #2-#4 and #7-#9 for TDD.

It in certain embodiments, may include frequency domain repetition to the enhancing of frequency-domain operations (for example, for efeMTC), such as Wherein introduce NPSS and/or NSSS.In some embodiments, can send in multiple Physical Resource Block (PRB) NPSS and/or NSSS.The PRB of carrying NPSS and/or NSSS can be predefined, for example, the top n or last N number of in central 72 subcarriers PRB.In one embodiment, the position of NPSS and/or NSSS can be in central 72 tones, but the position PRB can take Certainly in even number or odd system bandwidth, for example, in the case where in the central PRB that DC tone is in odd system bandwidth.One In a little embodiments, in order to handle the DC tone in odd system bandwidth, central PRB can not be configured for NPSS/NSSS biography It is defeated.In other embodiments, in order to handle the DC tone in odd system bandwidth, central PRB still can be used for NPSS/ NSSS, but the frequency domain NPSS/NSSS that length is 12 can be mapped in central PRB 12 tones in addition to DC tone, And DC tone can be skipped.

Determining whether to detect new synchronization signal (for example, efeMTC synchronization signal, with traditional PS S/ to reduce UE SSS, NPSS/NSSS different synchronization signals) transmission in burden, base station (for example, evolution node B (eNodeB, eNB), GNodeB (gNB)) can to UE indicate UE whether should detect new synchronization signal (e.g., including PSS/SSS, NPSS/ NSSS, the efeMTC synchronization signal different from traditional PS S/SSS/NPSS/NSSS).In certain embodiments, base station can be Uniting, block of information (SIB) signaling (for example, SIB of narrowband SIB, bandwidth reduction) is middle to send such signaling.For example, base station can be To UE instruction and new synchronization signal (e.g., including PSS/SSS, NPSS/NSSS, efeMTC synchronization signal) phase in SIB signaling Associated resource information, the instruction (example of such as duration of the periodicity of efeMTC synchronization signal, efeMTC synchronization signal Such as, the symbolic number of every subframe, the quantity of subframe), or the transmission for efeMTC synchronization signal PRB instruction.

Once detecting synchronization signal (for example, PSS/SSS, NPSS/NSSS, different from traditional PS S/SSS/NPSS/NSSS EfeMTC synchronization signal), in some embodiments, UE assume that being configured to for example for the rear of synchronization signal detected The long-time quality for the cell that continuous cell reacquires.In certain embodiments, UE assume that the new synchronous letter about cell The configuration of number (for example, efeMTC synchronization signal) is identical as the previous time of UE access cell.In such embodiments, UE can be with The configuration of new synchronization signal is considered as long-term action.Cell is reacquired, such embodiment can permit UE not blind Synchronization is directly executed in the case where inspection.In certain embodiments, it is new to send that Physical Broadcast Channel (PBCH) can be used in base station Synchronization signal.

In some embodiments, the enhancing (for example, for efeMTC) obtained to system information may include Master Information Block (MIB) (for example, MIB-B), system information block (SIB) are (for example, narrowband SIB, -1 narrowband SIB (SIB1-NB) of type, Class1 band The SIB (SIB 1-BR) of wide reduction) and other SI message enhancing.In some embodiments, PBCH repeat can increase and It can be distributed in time.In one embodiment, traditional PBCH in eMTC and PBCH, which repeats (for example, eMTC PBCH), can wrap Include that (for example, in TDD), and other PBCH repeatedly can be in subframe #0 and #9 (for example, for FDD) and subframe #0 and #5 It is included in subframe #4 and #5.In some embodiments, traditional PBCH can be used to keep backward compatibility.In some implementations In example, subframe N (for example, N=4) can be used for the transmission of SIB 1-BR or the repetition for eMTC PBCH, and this can be with It is alternately completed between two frames between frames, for example, the SIB 1-BR in the even frame and eMTC PBCH in odd-numbered frame, Vice versa.

For eMTC, tradition can be repeated in for the subframe #0 and #9 of FDD and the subframe #0 and #5 for TDD PBCH, and for 3MHz bandwidth, PBCH can be repeated in the SF#0 in all frames for TDD.In some embodiments, Special subframe can be defined with configurable periodicity, and special subframe may include the multiplicating of PBCH.

In some embodiments it is possible in the radio frames and bandwidth different from the radio frames and bandwidth for being exclusively used in traditional MIB Middle scheduling MIB.Higher level can predefine for example in higher-layer parameter or the scheduling and/or mode of specified MIB.In some realities It applies in example, NPBCH can be used for sending MIB.In some cases, it can send with both duplicate NPBCH and PBCH.In Under some cases, if and/or may not be sent when sending NPBCH eMTC PBCH repetition, however, it is possible to send core always Heart PBCH.In some embodiments, the presence of NPBCH can be indicated by the transmission of NPSS and/or NSSS, for example, being based on UE detects the presence of NPSS/NSSS, and UE, which can be determined, also has sent NPBCH.In one embodiment, NPBCH can be in PRB Or sent in multiple PRB, it is still the PRB different from NPSS/NSSS which, which falls in the subcarrier of 72, center,.For example, with holding The PRB for carrying NPSS/NSSS is compared, the relative position that the PRB for NPBCH can be kept fixed, and/or can be 72 in center In one of subcarrier, and it can be predefined.In some instances, NPBCH can carry 50 bits (for example, for NB- The MIB+CRC of IoT), and in other cases, NPBCH can carry 40 bits (for example, the MIB+CRC for being used for eMTC).In It, can be using different rate-matcheds with by 40 bit maps to NPBCH in some embodiments.

Sequence for new synchronization signal

In some embodiments, Zadoff-Chu (ZC) sequence can be used and generate new synchronization signal (for example, efeMTC Synchronization signal).In some embodiments, efeMTC synchronization signal may include constant amplitude zero auto-correlation (CAZAC) sequence, maximum Length sequences (m-sequence) or Gold sequence.In some embodiments, efeMTC synchronization signal may include generating new sequence.

In some embodiments, efeMTC synchronization signal can be periodically.Different root indexes can serve to indicate that Different cell identifiers (for example, physical-layer cell identifier symbol (PCID)) and/or other information, such as MTO, SIB1 (for example, ) and/or the update of other SIB SIB1-BR.In certain embodiments, efeMTC periodic synchronization signal can be with " burst " side Formula is sent, and multiple symbols are occupied in each transmission opportunity, and compared with every 5 milliseconds (ms) send a PSS and/or SSS, this can To improve synchronous efficiency.The case where providing synchronizing function (for example, being related to many repetitions) with power saving signal itself and function Rate saves signal detection and depends on traditional PSS/SSS (for example, the power consumption of the synchronization based on PSS/SSS leads to limited power Save gain) it compares, the introducing of efeMTC periodic synchronization signal can improve downlink (DL) expense and power is saved and increased Compromise between benefit.

In some embodiments, single sequence can be used for all cells, and scrambling code can be difference for different community , or (for example, MIB, SIB 1-BR, other SIBS update) can be different for the instruction of different information.Different Cell can configure efeMTC synchronization signal (for example, periodic synchronization signal) so that interference randomization at different times.

In some embodiments, the Zadoff-Chu sequence that length is 63 can be used (to believe for example, synchronous for efeMTC Number), wherein root index can be any value from { 1,2 ... 63 } for excluding { 25,29,34 } (having been used for LTE PSS).In In some embodiments, the sequence that there is low cross-correlation with traditional PS S/SSS sequence can be used (for example, lower than specified threshold Cross correlation value).

In some embodiments, can generate length for new synchronization signal (for example, efeMTC synchronization signal) is 63 Sequence (d (n)).For example, sequence (d (n)) can be generated according to following equation from Zadoff-Chu sequence:

Wherein sequence root index u (for example, Zadoff-Chu sequence index u) may include from this group of root index 1, 2 ..., 63 } value.In certain embodiments, this group of root index excludes root index 25,29 and 34.In addition, in some embodiments In, each of this group of root index { 1,2 ..., 63 } piece index can be related to individual cell identifier (for example, PCID).

In some embodiments, the sequence (d (0) ..., d (61)) that length is 62 can be generated for new synchronization signal. For example, sequence (d (0) ..., d (61)) can be the intertexture cascade for the binary sequence that two length are 31.Can using by The scramble sequence that another synchronization signal (such as PSS or new synchronization signal) provides scrambles modular cascade sequence.In some realities It applies in example, the combination for the sequence that two length for defining new synchronization signal (for example, SSS) are 31 can exist according to following equation It is different between subframe:

Sequence (d (0) ..., d (61)) that the sequence that two of them length is 31 can be respectively 62 with length (such as d (2n) is even number, and d (2n+1) is odd number, and 0≤n≤30) odd and even number part it is related.Index m₀And m₁Can according to Lower content is from physical-layer cell identifier group N_ID ⁽¹⁾Export:

m₀=m ' mod 31

Two sequencesWithM sequence can be defined as according to the following contentsTwo it is different Cyclic shift:

Wherein s (i)=1-2x (i), 0≤i≤30 are by such as giving a definition:

Primary condition x (0)=0, x (1)=0, x (2)=0, x (3)=0, x (4)=1

Two sequence c₀(n) and c₁(n) PSS or new synchronization signal (for example, PSS) can be depended on, and can basis The following contents is by M sequenceTwo different cyclic shifts define:

Wherein NI_D ⁽²⁾∈ { 0,1,2 } is physical-layer cell identifier group N_ID ⁽¹⁾Interior physical layer identifications, andSuch as give a definition 0≤i≤30:

Primary condition x (0)=0, x (1)=0, x (2)=0, x (3)=0, and x (4)=1.

Two sequencesWithIt can be according to the following contents by M sequence(for example, different ) cyclic shift defines:

Fig. 6 shows the table of physical layer identifications in accordance with some embodiments and associated index.In some embodiments, m₀ And m₁It is obtained from the table in Fig. 6, and0≤i≤30 by0≤i≤25 defines primary condition x (0)=0, X (1)=0, x (2)=0, x (3)=0, x (4)=1.

Fig. 7 shows the exemplary cross-correlation of certain sequences.In some embodiments, Fig. 7 assume that no frequency and Time migration and no noise.In some embodiments, the sequence of Fig. 7 can be the Zadoff-Chu sequence that length is 63.

In some embodiments, it may be considered that the root index of { 9,21,24,40,44,59 } is used for new synchronization signal.Example Such as, one group of Zadoff-Chu sequence of the root index with the subset from { 9,21,24,40,44,59 } with N number of element It can be used for different cells, wherein n-th in subset piece indexes applications are in (PCID mod N)=n-1, and wherein PCID can To refer to physical cell identifier, and N may refer to number.In other embodiments, different sequences can be used to indicate Different information, it is, for example, possible to use three set { 9,40 }, { 44,24 } and { 21,59 } to carry out indicating cell identifier (ID) The variation of partial information and information (for example, MIB, SIB 1-BR).For example, first index of each set can indicate Second index of " MIB/SIB1-BR does not change ", each set can indicate " variation of MIB/SIB1-BR ", otherwise also So, and three set { 9,40 }, { 44,24 } and { 21,59 } can correspond to the cell of three types (for example, by PCID Mod 3 is determined).As another example, it can be indexed without using the root close to " 1 " and/or " 63 " (for example, 1,2,62,63), because There is big timing estimation error under frequency shift (FS) for them.In some embodiments, the synchronization signal (example new when selection Such as, periodic synchronization signal) root index when, it may be considered that frequency shift (FS) influence.

Fig. 8 and Fig. 9 shows the exemplary cross-correlation of certain sequences.In some embodiments, Fig. 8 and Fig. 9 assumes frequency Offset is 4.5 kHz (kHz) and noiseless.In some embodiments, it is 63 that the sequence of Fig. 8 and Fig. 9, which can be length, Zadoff-Chu sequence.In certain embodiments, different receiver algorithm (for example, be used for the relevant part in part) can also be with Influence correlation configuration file.

In some embodiments, it may be considered that the root index of { 9,21,24,25,29,34,40,44,59 } is for newly same It walks signal (for example, for efeMTC PSS, efeMTC SSS).For example, with from N number of element 9,21,24,25, One group of Zadoff-Chu sequence of the root index of subset 29,34,40,44,59 } can be used for different cells, in subset N-th indexes applications are in (PCID mod N)=n-1, and wherein PCID may refer to physical cell identifier, and N can refer to Algebraic quantity.It is similar to above, different sequences can be used to indicate different information, the partial information and letter of such as cell ID Cease the variation of (for example, MIB, SIB1-NB, SIB1-BR).It is also similarly to above, the quantity of set can correspond to cell class The quantity (for example, being determined by PCID mod 3) of type.It may be without using certain indexes, because they have under frequency shift (FS) Big timing estimation error.In some embodiments, when the root rope for selecting new synchronization signal (for example, periodic synchronization signal) When drawing, it may be considered that frequency shift (FS) influences.

Figure 10 A and Figure 10 B show the exemplary crosscorrelation of certain sequences.In some embodiments, Figure 10 A and figure 10B assumes that frequency shift (FS) is 4.5 kHz (kHz) and noiseless.In some embodiments, the sequence of Figure 10 A and Figure 10 B can be with It is the Zadoff-Chu sequence that length is 63.For example, { 23,30,40 }, { 23,33,40 }, { 23,30,33 } or { 30,33,40 } Can be used for new synchronization signal, and wherein set in three elements can correspond to three types cell (for example, by PCID mod 3 is determined).In some embodiments, using duplicate new synchronization signal, can based between repetition from phase It closes to estimate frequency shift (FS).

In other embodiments, the Zadoff-Chu sequence with short length can be used, it is, for example, possible to use length For x Zadoff-Chu sequence and on frequency domain repeat be suitble to 6 PRB.In one embodiment, the sequence that length is 12 It can be repeated 6 times on 6 PRB in a frequency domain.In another embodiment, the sequence that length is 24 can be used and in frequency domain In be repeated 3 times.In yet another embodiment, length can be used and be 32 sequence, and be repeated twice in a frequency domain.It can be used Different root indexes carrys out the update of indicating cell ID and/or information (for example, MIB, SIB1-BR).

In some embodiments, such as other sequences of maximal-length sequence (M sequence) or Gold sequence can be used for newly Synchronization signal.For different design options, M sequence or Gold sequence can have different length.For sequence length The repetition in frequency domain can be used in the embodiment of shorter than 6 PRB.The initialization of M sequence can depend on cell ID and/or its Its information (for example, MIB, SIB1-BR), the update of such as MIB, SIB1-BR and/or other SIB.It is, for example, possible to use length For the M sequence or Gold sequence of X, and the nth elements of new synchronization signal can be obtained by 1-2s (n+a), wherein a= PCID mod Y, s (n) are M sequence or Gold sequence, and X and Y be any positive integer (for example, X can be 63 or 72, and 3) Y can be.

In some embodiments, new synchronization signal can be repeated on multiple symbols, and can apply scrambling code.Scrambling code It can be binary number or plural number.In some embodiments it is possible to synchronization signal is repeated on M symbol in subframe, and It can be in the overlay code that symbol rank application length is M.In some embodiments, M can be predefined (for example, M=11), And new synchronization signal can be sent on last 11 symbols in subframe.In this example, overlay code can be application In [1,1,1,1, -1, -1,1,1,1, -1,1] of 11 symbols (for example, such as in NB-IoT), or can be with good Any other sequence (for example, Barker code or Zadoff-Chu sequence that length is M) of cross correlation.

As another example, the quantity of the symbol occupied by the new synchronization signal in a subframe can be configured, this takes Certainly in being configured with how many symbol for the physical downlink control channel (PDCCH) in LTE and/or be configured with the port how many CRS. In some instances, the symbol for carrying CRS can be not used in new synchronization signal.It alternatively, can be with CRS in resource unit (RE) punctured new synchronization signal on.It, in some embodiments, can be with depending on the quantity for the symbol that new synchronization signal occupies Use the different scrambling codes (for example, any sequence of such as M sequence, Barker code or Zadoff-Chu sequence) with different length. Embodiment described herein can be used for wake-up signal design, for example, if mutual between wake-up signal and new synchronization signal Correlation is low.

Synchronization signal function

In some embodiments, new synchronization signal can be used for re-synchronization.For example, being used for new synchronization signal (example Such as, efeMTC synchronization signal) antenna port and the conventional synchronization signal (for example, PSS/SSS) for serving cell antenna Port can be quasi- co-located (QCL) about Doppler frequency shift and average retardation.Standard is co-located to can permit efeMTC synchronization signal With the coherent combination of conventional synchronization signal (for example, PSS/SSS), for example, if they send in channel coherency time.

Other than the synchronizing function of new synchronization signal (for example, efeMTC synchronization signal), new synchronization signal can also To be measured for wireless resource management (RRM).In one embodiment, for the antenna port of new synchronization signal and for taking The antenna port of the CRS for cell of being engaged in can be QCL's about Doppler frequency shift and average retardation.In some embodiments, higher Layer can signal the energy of every resource unit of the CRS of new synchronization signal and serving cell and/or neighboring community (EPRE) compare.For example, the power excursion between new synchronization signal and CRS can be { -3,0,3, spare } dB.

It in some embodiments, can be semi-statically (for example, by MIB, MIB-BR, SIB1-BR or other SIB Reserved bit) it enables and/or configures new synchronization signal (for example, efeMTC synchronization signal).In certain embodiments, Yong Hushe Standby (UE) can use the efeMTC synchronization signal in addition to initial access.In some embodiments, higher level can indicate to believe The configuration of efeMTC synchronization signal in order, and the configuration of new synchronization signal can also be indicated during switching.

In some embodiments, the configuration of efeMTC synchronization signal is considered the long-time quality of cell, for example, working as When the configuration of efeMTC periodic synchronization signal can be by network implementations, UE can detecte efeMTC periodic synchronization signal In the presence of, and can attempt to use identical configuration for subsequent reacquisition.For idle mode UE, in some embodiments In, efeMTC periodicity can be indicated by the change (for example, change of MIB, SIB1-BR or other SIB) of system information The change of the configuration of synchronization signal.

Figure 11 shows the block diagram of example machine 1100, can execute discussed in this article in the example machine 1100 What one or more technology (for example, method), for example, one or more efeMTC is operated.As described herein, example may include Can by machine 1100 logic or multiple components or mechanism operate.Circuit (for example, processing circuit) is in machine 1100 Tangible entity in the set of circuit realized comprising hardware (for example, ball bearing made, door, logic etc.).In circuit system Member may passage at any time and be flexible.Circuit includes that can execute specified operation in operation alone or in combination Member.In this example, the hardware of circuit can be designed immutablely to execute specific operation (for example, hardwired).In example In, the hardware of circuit may include the physical assemblies (for example, execution unit, transistor, ball bearing made etc.) of variable connection, the object Reason component includes the machine readable media of the physically modifying for encoding the instruction of specific operation (for example, magnetic, electricity, constant aggregation Removable placement of particle etc.).When connecting physical assemblies, the basic electrical characteristics of hardware composition for example become leading from insulator Body, vice versa.The instruction makes embedded hardware (for example, execution unit or loading mechanism) that can be connected to hardware via variable The member of middle creation circuit, to execute the part of specific operation in operation.Therefore, in this example, machine readable media element It is a part of circuit or is communicably coupled to other components of circuit in equipment operation.In this example, any physical set Part can be used in the more than one member of more than one circuit.For example, in operation, execution unit can be at one Between point be used in the first circuit of the first circuit system, and reused by the second circuit in the first circuit system, or not It is reused with the time by the tertiary circuit in second circuit system.Here is the additional example about these components of machine 1100.

In alternative embodiments, machine 1100 can be used as autonomous device operation or can connect (for example, networking) and arrives Other machines.In networked deployment, machine 1100 can be in server-client network environment with server machine, client The capability operation of terminal device or both.In this example, machine 1100 can serve as reciprocity (P2P) (or other distributions) network rings Peer machines in border.Machine 1100 can be personal computer (PC), tablet PC, set-top box (STB), personal digital assistant (PDA), mobile phone, the network equipment, network router, interchanger or bridge, or be able to carry out and the machine is specified to adopt Any machine of the instruction (sequentially or in other ways) of the operation taken.Although in addition, illustrate only individual machine, term " machine " should also be viewed as including executing one group (or multiple groups) instruction alone or in combination to execute any one discussed in this article Or any collection of machines of a variety of methods (such as cloud computing, software are to service (SaaS), other computer set group configurations).

Machine (for example, computer system) 1100 may include hardware processor 1102 (for example, central processing unit (CPU), graphics processing unit (GPU), hardware processor core or any combination thereof), main memory 1104, static memory (for example, for the memory or storage device of firmware, microcode, basic input and output (BIOS), unified Extensible Firmware Interface (UEFI) etc.) 1106 and mass storage device 1108 (for example, hard disk drive, tape drive, flash memory device or its Its block device), it some of which or can all communicate with one another via interconnecting link (for example, bus) 1130.Machine 1100 can To further comprise that display unit 1110, Alphanumeric Entry Device 1112 (for example, keyboard) and user interface (UI) navigation are set Standby 1114 (for example, mouses).In this example, display unit 1110, input equipment 1112 and UI navigation equipment 1114 can be touching Touch panel type display.Machine 1100 can also comprise storage equipment (for example, driving unit) 1108, signal generating device 1118 (for example, loudspeaker), network interface device 1120 and (such as global positioning system (GPS) of one or more sensors 1116 Sensor, compass, accelerometer or other sensors).Machine 1100 may include o controller 1128, such as serially (for example, universal serial bus (USB), parallel or other wired or wireless (for example, infrared (IR), near-field communication (NFC) etc.) are even It connects, to communicate or control one or more peripheral equipments (for example, printer, card reader etc.).

Processor 1102, main memory 1104, static memory 1106 or mass storage device 1108 register can To be or including machine readable media 1122, stored on the machine readable media 1122 by described herein any or more 1124 (for example, softwares) of one or more groups of data structures or instruction that kind technology or function are implemented or utilized.Instruction 1124 may be used also Completely or at least partially to reside in processor 1102, main memory 1104, static storage during being executed by machine 1100 In any register of device 1106 or mass storage device 1108.In one example, hardware processor 1102, main memory 1104, one in static memory 1106 or mass storage device 1108 or any combination may be constructed machine readable media 1122.Although machine readable media 1122 is illustrated as single medium, term " machine readable media " may include being configured For the single media of the one or more instructions 1124 of storage or multiple media (for example, centralized or distributed database, and/or Associated cache and server).

Term " machine readable media " may include the instruction that can be stored, encode or carry for being executed by machine 1100 And make machine 1100 execute any one or more of technology of the disclosure or can store, encode or carry to be instructed by this class Any medium of associated data structure is instructed using or with these.Non-limiting machine readable media example may include solid-state Memory, optical medium, magnetic medium and signal (for example, radiofrequency signal, other signals based on photon, voice signal etc.).In With multiple particles with constant (for example, static) quality and therefore in example, non-transitory machine-readable media includes being The machine readable media of the composition of substance.Therefore, non-transitory machine-readable media is the machine for not including transient state transmitting signal Readable medium.The specific example of non-transitory machine-readable media may include: nonvolatile memory, such as semiconductor memory Equipment (for example, electric programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM)) and flash memory are set It is standby；Disk, such as internal hard drive and moveable magnetic disc；Magneto-optic disk；And CD-ROM and DVD-ROM disk.

Transmission medium can be used and utilize any one of multiple transport protocols agreement via network interface device 1120 (for example, frame relay, Internet protocol (IP), transmission control protocol (TCP), User Datagram Protocol (UDP), Hyper text transfer are assisted View (HTTP) etc.) instruction 1124 is further sent or received on communication network 1126.Example communication network may include local It is net (LAN), wide area network (WAN), packet data network (for example, internet), mobile telephone network (for example, cellular network), general Logical fogey phone (POTS) network and radio data network are (for example, be known asInstitute of Electrical and Electric Engineers (IEEE) 802.11 standard series, referred to as802.16 standard series of IEEE), IEEE 802.15.4 standard system Column, reciprocity (P2P) network etc..In this example, network interface device 1120 may include one or more physical receptacles (for example, Ethernet, coaxial or telephone jack) or one or more antennas to be connected to communication network 1126.In this example, network interface Equipment 1120 may include mutiple antennas to use single input and multi-output (SIMO), multiple-input and multiple-output (MIMO) or multi input list At least one of output (MISO) technology carries out wireless communication.Term " transmission medium " should be considered as including that can store, compile Code carries the instruction executed by machine 1100 and including number or analog communication signal or other intangible mediums to promote this Any intangible medium of the communication of class software.Transmission medium is machine readable media.

Example

Although being described on one side by reference to specific example embodiments, it will be evident that not departing from this In the case where disclosed wider spirit and scope, these embodiments can be carry out various modifications and be changed.Therefore, explanation Book and attached drawing should be considered as illustrative and not restrictive.It forms part thereof of attached drawing and passes through way of illustration and not limitation Showing can be with the specific embodiment of practical matter.Described embodiment is described with enough details, so that this field Technical staff can practice teachings disclosed herein.Other embodiments can be utilized and derived therefrom, and allow to do not taking off Structure and logic replacement are carried out in the case where from the scope of the present disclosure and are changed.Therefore, which is not construed as having Limited significance, and the equivalent that is only assigned by appended claims and such claim of the range of various embodiments Full scope limits.

Such embodiment of present subject matter can be individually and/or jointly referenced herein by term " aspect ", Just for the sake of convenient, and it is not intended to and scope of the present application is limited to any single aspect or inventive concept of one's own accord (such as Fruit actually discloses more than one).Therefore, although this article has illustrated and described specific embodiments, it should be appreciated that be computed The alternative shown specific embodiment of any arrangement to realize identical purpose.The disclosure is intended to cover appointing for various embodiments What and all changes or variation.After reading above description, the combination of above-described embodiment and do not specifically describe herein other Embodiment will be apparent to those skilled in the art.

In this document, term "a" or "an" is common in the patent literature, including one or more than one, solely Stand on any other example or usage of "at least one" or " one or more ".In this document, unless otherwise stated, Term "or" is for indicating nonexcludability, or " A or B " is made to include " A but be not B ", " B but be not A " and " A and B ". In this document, term "comprising" and " wherein " are used as the general English equivalent of corresponding term " comprising " and " wherein ".This Outside, in following following claims, term " includes " and "comprising" are open, that is, in addition to such art in the claims System, UE, article, composition, formula or the process of element except the element listed after language are still considered as falling into the power In the range of benefit requires.In addition, in following following claims, term " first ", " second " and " third " etc. are used only as marking, and It is not intended to and numerical requirements is applied to its object.

The abstract of the disclosure is provided to allow reader quickly to determine essence disclosed in technology.Understanding when submission is that it is not It is used in explanation or limitation the scope of the claims or meaning.In addition, in specific embodiment in front, it can be seen that be The simplified disclosure, each feature are grouped together in single aspect.The method of the disclosure is not necessarily to be construed as reflection institute Claimed embodiment needs the intention of the more features than being expressly recited in each claim.But such as following right It is required that reflected, subject matter is all features less than single open aspect.Therefore, following following claims is incorporated to herein In specific embodiment, each claim itself is as individually aspect.

The following describe method discussed herein, machine readable media and systems (for example, machine, equipment or other devices) Various examples.

Example 1 is the device for being configured to further enhance the base station (BS) of type machine type communication (efeMTC), the dress Setting includes: memory；And processing circuit, it is configured as: generating the sequence for being x for the length of efeMTC synchronization signal, Length is configured as the sequence of x in 1 missing father: the repetition in 6 Physical Resource Block (PRB) in a frequency domain, wherein in order to Generate the sequence that length is x, processing circuit is configured as: selection excludes 1 missing father of root index: 25,1 missing father: 29 and 1 Lack father: { 1,1 missing father: 2 ..., 1 missing father: any one of 63 } index corresponds to for 34 this group of root index Different physical-layer cell identifiers (PCID)；For coding RRC signaling to include system information block (SIB), which includes being used for The configuration information of the transmission of efeMTC synchronization signal；Generate signaling with configure transceiver circuit with according to SIB in frequency resource Sending length is the sequence of x as efeMTC synchronization signal, and wherein memory is configured as the sequence that memory length is x.

Example 1 is the device for being configured to further enhance the base station (BS) of type machine type communication (efeMTC), the dress Setting includes: memory；And processing circuit, it is configured as: generating the sequence for being x for the length of efeMTC synchronization signal, Length is that the sequence of x is configured as in the interior repetition in a frequency domain of 6 Physical Resource Block (PRB), wherein is to generate length The sequence of x, processing circuit are configured as: selection excludes in one group of root index { 1,2 ..., 63 } of root index 25,29 and 34 Any one index, to correspond to different physical-layer cell identifiers (PCID)；Coding is wireless including system information block (SIB's) Resources control (RRC) signaling, the SIB include the configuration information for the transmission of efeMTC synchronization signal；According to the SIB, In The signaling for being used for transmission the sequence for being x as the length of the efeMTC synchronization signal is generated in frequency resource, wherein deposit Reservoir is configured as the sequence that memory length is x.

In example 2, the theme of example 1 includes, wherein length is that the sequence of x is configured as repeating 6 in 6 PRB Sequence that sequence that secondary length is 12, the length for being configured as being repeated 3 times in 6 PRB are 24 is configured as in 6 PRB The sequence or matched that sequence that the length being inside repeated 2 times is 32, the length for being configured as being repeated once in 6 PRB are 63 A sequence being set in the sequence that the length being repeated once in 6 PRB is 72.

In example 3, the theme of example 2 includes, wherein length is that the sequence of x is Zadoff-Chu sequence, maximum length A sequence in sequence (m-sequence) or Gold sequence.

In example 4, the theme of example 1-3 includes, wherein processing circuit is configured as being based on disturbing difference according to PCID The sequence of code selected to generate length as x.

In example 5, the theme of example 1-4 includes, wherein the processing circuit be also configured to generate at one or The signaling of the efeMTC synchronous transmission of signal is repeated on the symbol of specified quantity in multiple subframes.

In example 6, the theme of example 1-5 includes, wherein processing circuit: one group of root index { 1,2 ..., 63 } of selection Root index subset；And the subset based on root index generates the sequence that length is x, wherein n-th of the subset of root index Root index corresponds to (PCID mod N)=n-1.

In example 7, the theme of example 6 includes, wherein and the subset of root index includes that at least one root indexes, and at least one A root index has the cross correlation value with traditional primary synchronization signal (PSS) sequence lower than specified threshold.

In example 8, the theme of example 2-7 includes, wherein the configuration information for efeMTC synchronization signal includes The periodical instruction of efeMTC synchronization signal, is used for efeMTC synchronization signal at the instruction of the duration of efeMTC synchronization signal Transmission PRB instruction or efeMTC synchronization signal each resource unit energy (EPRE) and cell channel reference believe One or more of the instruction of ratio of EPRE of number (CRS).

In example 9, the theme of example 2-8 includes, wherein the PRB of the transmission for efeMTC synchronization signal is predetermined Justice.

In example 10, the theme of example 1-9 includes, wherein processing circuit be configured as by efeMTC synchronization signal with A signal standard in traditional primary synchronization signal (PSS) or traditional secondary synchronization signal (SSS) is co-located.

In example 11, the theme of example 1-10 includes, wherein processing circuit be configured as by efeMTC synchronization signal with Channel reference signal (CRS) is quasi- co-located.

In example 12, the theme of example 1-11 includes, wherein the configuration information for efeMTC synchronization signal is by higher Layer definition.

In example 13, the theme of example 12 includes, wherein processing circuit is configured as during handover operation from higher After the received signaling decoding configuration information of layer, the RRC signaling including SIB is encoded.

In example 14, the theme of example 2-13 includes, wherein processing circuit be configured as via Master Information Block (MIB), Reserved bit in one or more of SIB or system information (SI) message is semi-statically configured efeMTC synchronization signal.

In example 15, the theme of example 2-14 includes, wherein processing circuit be configured as re-synchronization operation or Wireless resource management (RRM) measures one or more of operation to configure efeMTC synchronization signal.

Example 16 is the device for being configured to further enhance the user equipment (UE) of type machine type communication (efeMTC), The device includes: memory；And processing circuit, UE is configured to be used for cell acquisition operations, wherein is obtained and is grasped as cell A part of work, processing circuit are configured as: being decoded from base station (BS) received wireless heterogeneous networks (RRC) signaling, RRC signaling Including system information block (SIB), which includes the configuration information for receiving efeMTC synchronization signal；EfeMTC is same Walk signal comprising length is the sequence of x, which is that the sequence of x is configured as in 6 Physical Resource Block (PRB) in frequency It is repeated in domain, wherein the sequence that length is x indexes { 1,2 ..., 63 } based on one group of root for excluding root index 25,29 and 34 Root index generates, and wherein, and any one of one group of root index { 1,2 ..., 63 } index corresponds to different physical layers Cell ID (PCID)；Transceiver circuit is configured according to configuration information to receive efeMTC synchronization signal；And decoded length is x Sequence, for exchanging for efeMTC signaling synchronous and subsequent with BS and BS, and wherein, memory is configured as storing EfeMTC synchronization signal.

In example 17, the theme of example 16 includes, wherein length is that the sequence of x is configured as the weight in 6 PRB Sequence that sequence that multiple 6 times length is 12, the length for being configured as being repeated 3 times in 6 PRB are 24 is configured as at 6 Sequence that sequence that the length being repeated 2 times in PRB is 32, the length for being configured as being repeated once in 6 PRB are 63 or by A sequence being configured in the sequence that the length being repeated once in 6 PRB is 72.

In example 18, the theme of example 16-17 includes, wherein processing circuit is baseband processor.

In example 19, the theme of example 16-18 includes, wherein device further comprise two or more antennas and Transceiver, two or more antennas and transceiver are configured as receiving RRC signaling and efeMTC synchronization signal.

Example 20 is computer-readable hardware storage device, and storage is executed by the one or more processors of base station (BS) Instruction, the base station is configured for further enhancing type machine type communication (efeMTC), and described instruction will be one Or multiple processors are configured that and generate the sequence for being x for the length of efeMTC synchronization signal, which is that the sequence of x is matched It is set to and is repeated in a frequency domain in 6 Physical Resource Block (PRB), wherein in order to generate the sequence that length is x, instructed one Or multiple processors are configured that selection excludes any one in one group of root index { 1,2 ..., 63 } of root index 25,29 and 34 A index, to correspond to different physical-layer cell identifiers (PCID)；Coding includes the radio resource control of system information block (SIB) (RRC) signaling is made, which includes the configuration information for the transmission of efeMTC synchronization signal；And it according to SIB, is provided in frequency The signaling for being used for transmission the sequence for being x as the length of the efeMTC synchronization signal is generated in source.

In example 21, the theme of example 20 includes, wherein length is that the sequence of x is configured as the weight in 6 PRB Sequence that sequence that multiple 6 times length is 12, the length for being configured as being repeated 3 times in 6 PRB are 24 is configured as at 6 Sequence that sequence that the length being repeated 2 times in PRB is 32, the length for being configured as being repeated once in 6 PRB are 63 or by A sequence being configured in the sequence that the length being repeated once in 6 PRB is 72.

Example 22 is computer-readable hardware storage device, stores the one or more processors by user equipment (UE) The instruction of execution, the user equipment are configured for further enhancing type machine type communication (efeMTC), and described instruction will One or more of processors are configured that configuration UE for cell acquisition operations, wherein one as cell acquisition operations Part, one or more processors are configured that by instruction to be decoded from base station (BS) received wireless heterogeneous networks (RRC) signaling, The RRC signaling includes system information block (SIB), the system information block include for receive efeMTC synchronization signal with confidence Breath；EfeMTC synchronization signal comprising length is the sequence of x, and length is that the sequence of x is configured as in 6 Physical Resource Block (PRB) in repeat in a frequency domain, wherein length be x sequence based on exclude root index 25,29 and 34 one group of root index 1, 2 ..., 63 } root, which indexes, to be generated, and wherein, any one of one group of root index { 1,2 ..., 63 } index corresponds to not Same physical-layer cell identifier (PCID)；Transceiver circuit is configured according to configuration information to receive efeMTC synchronization signal；And Decoded length is the sequence of x, for exchanging for synchronous with BS and subsequent efeMTC signaling and BS.

Example 23 is at least one machine readable media, including instruction, the instruction make to handle when being executed by processing circuit Circuit executes operation with any example in implementation example 1-22.

Example 24 is the device for including the component of any example in implementation example 1-22.

Example 25 is the system of any example in implementation example 1-22.

Example 26 is the method for any example in implementation example 1-22.

Claims

1. a kind of device of base station (BS), is configured for further enhancing type machine type communication (efeMTC), the dress It sets and includes:

Memory；And

Processing circuit is configured as:

The sequence for being x for the length of efeMTC synchronization signal is generated, the length is that the sequence of x is configured in 6 objects It is repeated in a frequency domain in reason resource block (PRB), wherein in order to generate the sequence that the length is x, the processing circuit is configured Are as follows:

Selection excludes root and indexes any one of 25,29 and 34 one group of root index { 1,2 ..., 63 } index, to correspond to Different physical-layer cell identifiers (PCID)；

Coding includes wireless heterogeneous networks (RRC) signaling of system information block (SIB), and the SIB is described including being used for transmission The configuration information of efeMTC synchronization signal；

According to the SIB, is generated in frequency resource and be used for transmission the length as the efeMTC synchronization signal as x's The signaling of sequence,

Wherein, the memory is configured as storing the sequence that the length is x.

2. the apparatus according to claim 1, wherein the length is that the sequence of x is configured as in 6 PRB Sequence that sequence that the length being repeated 6 times is 12, the length for being configured as being repeated 3 times in 6 PRB are 24 is configured For the length being repeated 2 times in 6 PRB be 32 sequence, be configured as the length being repeated once in 6 PRB The sequence in sequence for being 72 for 63 sequence or the length that is configured as being repeated once in 6 PRB.

3. the apparatus of claim 2, wherein the length is that the sequence of x is Zadoff-Chu sequence, maximum length A sequence in sequence (m-sequence) or Gold sequence.

4. device according to any one of claim 1 to 3, wherein the processing circuit is configured as: based on according to institute Selection of the PCID to different scrambling codes is stated, the sequence that the length is x is generated.

5. the apparatus according to claim 1, wherein the processing circuit is also configured to generate in one or more sons The signaling of the efeMTC synchronous transmission of signal is repeated on the symbol of specified quantity in frame.

6. the apparatus according to claim 1, wherein the processing circuit is configured as:

Select the subset of the root index of one group of root index { 1,2 ..., 63 }；And

The subset based on root index generates the sequence that the length is x, wherein n-th of the subset of root index Index corresponds to (PCID mod N)=n-1.

7. device according to claim 6, wherein root index the subset include at least one root index, it is described extremely Few root index has the cross correlation value with traditional primary synchronization signal (PSS) sequence lower than specified threshold.

8. the apparatus of claim 2, wherein the configuration information for the efeMTC synchronization signal includes institute State the periodical instruction of efeMTC synchronization signal, the instruction of the duration of the efeMTC synchronization signal, for described The energy (EPRE) of each resource unit of the instruction of the PRB of the transmission of efeMTC synchronization signal or the efeMTC synchronization signal With one or more of the instruction of ratio of EPRE of the channel reference signal (CRS) of cell.

9. the apparatus of claim 2, wherein the PRB of the transmission for the efeMTC synchronization signal is pre- Definition.

10. the apparatus according to claim 1, wherein the processing circuit is configured as the efeMTC synchronization signal It is co-located with a signal standard in traditional primary synchronization signal (PSS) or traditional secondary synchronization signal (SSS).

11. equipment according to claim 1, wherein the processing circuit is configured as the efeMTC synchronization signal It is quasi- co-located with channel reference signal (CRS).

12. the apparatus according to claim 1, wherein the configuration information for the efeMTC synchronization signal is by more High level definition.

13. device according to claim 12, wherein the processing circuit is configured as: from institute during handover operation After stating configuration information described in the received signaling decoding of higher level, the RRC signaling including the SIB is encoded.

14. the apparatus of claim 2, wherein the processing circuit is configured as: via Master Information Block (MIB), institute It states the reserved bit in one or more of SIB or system information (SI) message and is semi-statically configured the synchronous letter of the efeMTC Number.

15. equipment according to claim 2, wherein the processing circuit is configured as: for re-synchronization operation or nothing Line resource management (RRM) measures one or more of operation to configure the efeMTC synchronization signal.

16. the device of user equipment (UE) of the one kind for further enhancing type machine type communication (efeMTC), described device Include:

Memory；And

Processing circuit configures the UE to be used for cell acquisition operations, wherein one as the cell acquisition operations Point, the processing circuit is configured as:

From base station (BS) received wireless heterogeneous networks (RRC) signaling, the RRC signaling includes system information block (SIB) for decoding, The system information block includes the configuration information for receiving efeMTC synchronization signal,

The efeMTC synchronization signal comprising length is the sequence of x, and the length is that the sequence of x is configured as in 6 physics It is repeated in a frequency domain in resource block (PRB),

Wherein, the sequence that the length is x indexes the root of { 1,2 ..., 63 } based on one group of root for excluding root index 25,29 and 34 Index generates, and

Wherein, any one of described one group of root index { 1,2 ..., 63 } index corresponds to different physical-layer cell identifiers (PCID)；

Transceiver circuit is configured according to the configuration information to receive the efeMTC synchronization signal；And

The sequence that the length is x is decoded, for exchanging for efeMTC signaling synchronous and subsequent with the BS and the BS, and

Wherein, the memory is configured as storing the efeMTC synchronization signal.

17. device according to claim 16, wherein the length is that the sequence of x is configured as in 6 PRB Sequence that sequence that the length being inside repeated 6 times is 12, the length for being configured as being repeated 3 times in 6 PRB are 24 is matched It is set to sequence that the length that is repeated 2 times in 6 PRB is 32, is configured as the length being repeated once in 6 PRB The sequence in sequence that degree is 72 for 63 sequence or the length that is configured as being repeated once in 6 PRB.

18. device according to claim 16, wherein the processing circuit is baseband processor.

19. device according to claim 16, wherein described device further comprises two or more antennas and transmitting-receiving Device, the two or more antennas and the transceiver are configured as receiving RRC signaling letter synchronous with the efeMTC Number.

20. a kind of computer-readable hardware storage device, the finger that storage is executed by the one or more processors of base station (BS) It enables, the base station is configured for further enhancing type machine type communication (efeMTC), and described instruction will be one or more A processor is configured that

The sequence for being x for the length of efeMTC synchronization signal is generated, the length is that the sequence of x is configured as in 6 physics Is repeated in resource block (PRB) in a frequency domain, wherein in order to generate the sequence that the length is x, described instruction by one or Multiple processors are configured that

Selection excludes root and indexes any one of 25,29 and 34 one group of root index { 1,2 ..., 63 } index, to correspond to Different physical-layer cell identifiers (PCID)；Coding including system information block (SIB) wireless heterogeneous networks (RRC) signaling with, The SIB includes the configuration information for the transmission of the efeMTC synchronization signal；And

According to the SIB, is generated in frequency resource and be used for transmission the length as the efeMTC synchronization signal as x's The signaling of sequence.

21. computer-readable hardware storage device according to claim 20, wherein the length be x sequence be by Be configured to the length being repeated 6 times in 6 PRB be 12 sequence, be configured as the length being repeated 3 times in 6 PRB It spends the sequence for being 24, the sequence that the length for being configured as being repeated 2 times in 6 PRB is 32, be configured as at described 6 The sequence that sequence that the length being repeated once in PRB is 63 or the length for being configured as being repeated once in 6 PRB are 72 A sequence in column.

22. a kind of computer-readable hardware storage device, storage is executed by the one or more processors of user equipment (UE) Instruction, the user equipment is configured for further enhancing type machine type communication (efeMTC), and described instruction will be described One or more processors are configured that

The UE is configured for cell acquisition operations, wherein as a part of cell acquisition operations, described instruction will be described One or more processors are configured that

The sequence that the length is x is decoded, for exchanging for synchronous with the BS and subsequent efeMTC signaling and the BS.